package com.maven.front.service.syslog;

import com.alibaba.fastjson.JSON;
import com.maven.front.aop.MyLog;
import com.maven.front.aop.SysLog;
import com.maven.front.bean.EduUser;
import com.maven.front.mapper.SysLogMapper;
import com.maven.front.util.HttpContextUtils;
import com.maven.front.util.IPUtils;
import lombok.extern.slf4j.Slf4j;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.annotation.AfterReturning;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Pointcut;
import org.aspectj.lang.reflect.MethodSignature;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.stereotype.Component;

import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;
import java.lang.reflect.Method;
import java.util.Date;

/**
 * @program: web-front
 * @description: 系统日志：切面处理类
 * @author: WangYiLong
 * @create: 2020-08-17 15:40
 **/
@Aspect
@Component
@Slf4j
public class SysLogAspect {

    @Resource
    private SysLogMapper sysLogMapper;

    @Autowired
    private RedisTemplate redisTemplate;

    //定义切点 @Pointcut
    //在注解的位置切入代码
    @Pointcut("@annotation(com.maven.front.aop.MyLog)")
    public void logPoinCut() {
    }

    //切面 配置通知
    @AfterReturning("logPoinCut()")
    public void saveSysLog(JoinPoint joinPoint) {
        log.info("**********进入切面*************");
        //保存日志
        SysLog sysLog = new SysLog();

        //从切面织入点处通过反射机制获取织入点处的方法
        MethodSignature signature = (MethodSignature) joinPoint.getSignature();
        //获取切入点所在的方法
        Method method = signature.getMethod();

        //获取操作
        MyLog myLog = method.getAnnotation(MyLog.class);
        log.info(myLog.toString()+"*******************");
        if (myLog != null) {
            String value = myLog.value();
            sysLog.setOperation(value);//保存获取的操作
        }

        //获取请求的类名
        String className = joinPoint.getTarget().getClass().getName();
        //获取请求的方法名
        String methodName = method.getName();
        sysLog.setMethod(className + "." + methodName);
        //请求的参数
        Object[] args = joinPoint.getArgs();
        //将参数所在的数组转换成json
        String params = JSON.toJSONString(args);
        sysLog.setParams(params);
        sysLog.setCreateDate(new Date());
        //获取用户ip地址
        HttpServletRequest request = HttpContextUtils.getHttpServletRequest();
        sysLog.setIp(IPUtils.getIpAddr(request));
        //获取用户名
        String token = request.getHeader("token");
        log.info("*****************token:"+token);
        String name ="";
        try{
             EduUser user = (EduUser) redisTemplate.opsForValue().get(token);
             name = user.getEmail();
        }catch (Exception e){
            name="游客";
        }
        sysLog.setUsername(name);
        log.info(sysLog.toString()+"***********");
        //调用service保存SysLog实体类到数据库
        sysLogMapper.insert(sysLog);
    }

}
